International Rectifier CHL8328
The IR3536/CHL8326 and IR3538/CHL8328 are dual-loop digital multi-phase buck controllers. The IR3536/CHL8326 drive up to 6 phases and the IR3538/CHL8328 drives up to 8 phases.FEATURES
DESCRIPTION
● 6-phase & 8-phase dual output PWM Controller● Phases are flexibly assigned between Loops 1 & 2
● Intel® VR12, AMD® 3.4MHz SVI/PVI & Memory modes
● Overclocking & Gaming Mode with Vmax setting
● Switching frequency from 200kHz to 1.2MHz per phase
● IR Efficiency Shaping
FEATURES
including Variable Gate Drive and Dynamic Phase Control● Programmable 1-phase or 2-phase for Light Loads and Active Diode Emulation for Very Light Loads
● IR Adaptive Transient Algorithm (ATA) on both loops minimizes output bulk capacitors and system cost
● Auto-Phase Detection with auto-compensation
● Per-Loop Fault Protection: OVP, UVP, OCP, OTP, CFP
● I2C/SMBus/PMBus system interface for telemetry of Temperature, Voltage, Current & Power for both loops
● Non-Volatile Memory (NVM) for custom configuration
● Compatible with IR ATL and 3.3V Tri-state Drivers
● +3.3V supply voltage; -20ºC to 85ºC ambient operation
● Pb-Free, RoHS, 7x7 48-pin & 8x8 56-pin QFN, MSL2 package
APPLICATIONS
● I...